[vtkusers] ITK image to VTK: wrong display

[Marcos]

Ok,

I don't know why (if somebody can explain...), changing pixel type from
unsigned short to float makes a difference:

http://s24.postimg.org/srf8937np/firstcompare_after_float.png

Not enough, but I have two user controls to change window/level, and
incrementing window value and decrementing level value I get the same image
that Philips Viewer shows (about 350 window and 30 level):

http://s4.postimg.org/qz2o7zf65/after_windowlevel.png

PD: I found out in the Philips viewer some window/level presets... and the
one it's using has window: 360 and level: 60 (you can choose another
presets)
I was opening another files, and there's always those presets.

Does that mean that is correct that I always set those presets when loading
my files?

That doesn't resolve why I can't load color on my images :(
But the color Dicom file I'm trying... Philips can't even load it, it says
it has invalid data. I can view it at least.

But if I set it to 360 and 60 I see it too bright so... I return to my
question: how to know what preset is fine for each file?

Thanks.

2015-09-14 0:01 GMT+02:00 Marcos <fotosentido at gmail.com>:

> Hi,
> I'm using ITK to read dicom files, and connecting them to VTK.
>
> I'm using the examples of gdcmdata (
> http://sourceforge.net/projects/gdcm/files/gdcmData/)
>
> But still... I'm beginning to surrender, because I can't get right the
> first image (3E768EB7.dcm).
>
> I'm posting my problem in VTK because I saved my image from ITK (changing
> personal metadata) and opened with the Philips DICOM Viewer, and I see it
> right too. So it has to be my VTK setup.
>
> The thing is I don't apply any filter in VTK. I was applying one on ITK
> (RescaleIntensityFilter, setting minimum 0 and maximum output 255.) but
> without effect.
>
>
> Philips DICOM Viewer, here the image:
>
> http://s8.postimg.org/d6oey6esl/correctimage.png
>
> In my application, using unsigned short from ITK:
>
> http://s22.postimg.org/5hjhjwlsh/unsignedshort.png
>
> In my application, using unsigned int from ITK:
>
> http://s13.postimg.org/xaoknjjzr/unsignedchar.png
>
> I tried this in VTK:
>
> double* range = imageViewer->GetInput()->GetScalarRange();
>
> imageViewer->SetColorWindow(range[1] - range[0]);
>
> imageViewer->SetColorLevel(0.5 * (range[1] + range[0]));
>
>
> But nothing. I just don't know what to do.
> Also I can't see color images.
> I'd aprecciate any kind of guidance.
>
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